It is odd, when you have a secret belief of your own which you do not wish to acknowledge, the voicing of it by someone else will rouse you to a fury of denial. I burst immediately into indignant speech.
They say all the world loves a lover – apply that saying to murder and you have an even more infallible truth.
Crime is terribly revealing. Try and vary your methods as you will, your tastes, your habits, your attitude of mind, and your soul is revealed by your actions.